Storm Burst

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Storm BurstAoE, Spell, Lightning, Channelling, Duration, Physical
Level: (1-20)
Cost: (2-5) Mana
Cast Time: 0.25 sec
Critical Strike Chance: 6.00%
Effectiveness of Added Damage: 35%
Requires Level 12Unleash orbs of energy while you channel that repeatedly jump towards the targeted location until their duration expires, dealing damage in small area after each jump. When you stop channelling, all remaining orbs explode, dealing higher damage in a larger area.Deals (6-168) to (8-252) Physical Damage
50% of Physical Damage Converted to Lightning Damage
Base duration is 1.20 seconds
+(0-0.4) metres to radius
Orbs jump every 0.4 seconds
Exploding Orbs deal 75% of Skill Damage for each 0.4 seconds of remaining Duration

Additional Effects From 1-20% Quality:
Base duration is (0.02-0.4) seconds
Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.
Acquisition
Drop level: 12
Vendor Offer
1x Scroll Fragment
Metadata
Item class: Skill Gem
Metadata ID: Metadata/Items/Gems/SkillGemStormBurst

Storm Burst is a Spell Channelling skill that creates orbs of energy which deal Physical damage, half of which is converted to Lightning damage, in an Area of effect. The orbs deal damage at an interval of 0.4 seconds over a Duration of 1.2 seconds.

Skill function and interaction

Channelling Storm Burst creates a cluster of pulsing orbs that follow the mouse pointer. Enemies can be hit by multiple orbs, but the orbs spawn in a spread out pattern resembling buckshot.

Each orb created has its own duration tracker. Every 0.4 seconds, the orbs will jump to a new location around the cursor and deal Area of Effect damage. This 0.4 seconds interval is independent for each orb.

When the player stops channelling, all remaining orbs explode, dealing higher damage in a larger area based on duration remaining. The extra damage is not dealt when the orbs jump around.

Totems channelling Storm Burst will also cause the extra explosion damage if they are destroyed by enemies, they naturally expire or get removed due to the player casting new totems somewhere else.

  • Area of Effect: Area of Effect modifiers affect the radius of the explosion caused by each orb, but does not affect the spread of the orbs from the cursor. Thus, increasing AoE will result in more overlapping explosions and higher hit rate.[1]
  • Cast Speed: Cast speed modifiers affect the rate at which new orbs are created, but does not affect the jump interval (0.4s).
  • Skill Duration: Skill duration modifiers affect how long each orb stays on the ground before expiring and exploding. However, because the the skill deals damage at an interval of 0.4 seconds, investing in skill duration will only have a meaningful effect if it would bring the total duration to the next breakpoint in multiples of 0.4 seconds (i.e. 1.6 seconds, 2.0 seconds, 2.4 seconds, etc.) There is no difference between 2.01 seconds and 2.39 seconds, or any other duration that is not a multiple of 0.4.[2]

Gem level progression

LevelRequired LevelRequired StrengthRequired IntelligenceMana
Cost
Physical
Damage
RadiusExp.Total Exp.
112142126 to 8N/A00
215172527 to 11N/A1524915249
319213029 to 14N/A4151756766
4232435312 to 19N/A81983138749
5272841316 to 24+0.1m147968286717
6313246321 to 31+0.1m250557537274
7353651326 to 39+0.1m405086942360
8383855331 to 47+0.1m4477181390078
9414159437 to 56+0.2m6153182005396
10444463444 to 66+0.2m8346392840035
11474767452 to 78+0.2m15707604410795
12504971461 to 91+0.2m16339876044782
13535275471 to 107+0.3m21510308195812
14565579583 to 125+0.3m281218911008001
15595883597 to 146+0.3m509936016107361
166260875113 to 169+0.3m940073125508092
176462905125 to 187+0.4m1527336640781458
186664925138 to 207+0.4m2628658267068040
196866955152 to 229+0.4m62890590129958630
207068985168 to 252+0.4m212046017342004647
2172701005185 to 278+0.5mN/AN/A
2274N/AN/A6204 to 307+0.5mN/AN/A
2376N/AN/A6225 to 338+0.5mN/AN/A
2478N/AN/A6248 to 372+0.5mN/AN/A
2580N/AN/A6273 to 409+0.6mN/AN/A
2682N/AN/A6300 to 450+0.6mN/AN/A
2784N/AN/A6330 to 495+0.6mN/AN/A
2886N/AN/A6362 to 543+0.6mN/AN/A
2988N/AN/A6398 to 597+0.6mN/AN/A
3090N/AN/A7437 to 655+0.6mN/AN/A
3191N/AN/A7457 to 686+0.7mN/AN/A
3292N/AN/A7479 to 719+0.7mN/AN/A
3393N/AN/A7502 to 753+0.7mN/AN/A
3494N/AN/A7526 to 788+0.7mN/AN/A
3595N/AN/A7550 to 826+0.7mN/AN/A
3696N/AN/A7576 to 865+0.7mN/AN/A
3797N/AN/A7603 to 905+0.7mN/AN/A
3898N/AN/A7632 to 948+0.7mN/AN/A
3999N/AN/A7661 to 992+0.7mN/AN/A
40100N/AN/A7692 to 1038+0.8mN/AN/A

Gem quality

TypeAdditional Effects per 1-20% QualityWeight
SuperiorBase duration is (0.02-0.4) seconds1

Item acquisition

Storm Burst can drop anywhere.

Recipes

Storm Burst can be created from the following recipes:

AmountPartDescriptionMeta
13The CataclysmThe Cataclysm13Level 21 Spell Gem
Corrupted
The mighty warriors traded in blows, the nimble archers in arrows, yet it was the brazen thaumaturgists who would bring catastrophe to all.
Random corrupted level 21 Spell gemA
6The FoxThe Fox6Level 20 Gem"Masters of wit, strength and cunning. To survive the harsh winters, you must be like the fox."
- Ezomyte Proverb
Random level 20 gemA
3Gemcutter's PromiseGemcutter's Promise3Gem
Quality: +20%
"I swore to use my position to help the people. What good is power when it just accumulates on the already-powerful?" - Erasmus, Imperial Gemcutter
Random gem with 20% qualityA
1Gemcutter's IncubatorGemcutter's IncubatorStack Size: 10Adds an incubated Quality Gem item to an equippable item
Item drops after killing {0} monsters
Right click this item then left click an item to apply it. The Incubated item drops after killing a specific number of monsters.
Random gem with 1–20% qualityA
1The VoidThe Void1Reach into the Void and claim your prize.Random divination card set exchangeA

Quest reward

This item is given as a quest reward for the following quests:

Class →WitchShadowRangerDuelistMarauderTemplarScion
Quest ↓
The Siren's Cadence
Act 1

Vendor reward

This item can be bought at the listed NPC vendors, after completing the following quests:

Class →WitchShadowRangerDuelistMarauderTemplarScion
Quest ↓
The Siren's Cadence
Act 1
Nessa
A Fixture of Fate
Act 3
Siosa
Fallen from Grace
Act 6
Lilly Roth

Related helmet enchantments

The following helmet enchantments affect Storm Burst.

Note that helmet enchantments are no longer obtainable since version 3.23.0 and can only be obtained in permanent leagues as already enchanted items from before this patch.

NameFor generated item/monster modifiers the minimum item/monster level respectively. Some generation types may not require this condition to be met, however item level restrictions may be raised to 80% of this value.LabyrinthStatsSpawn Weighting
Enchantment Storm Burst Additional Object Chance 166Merciless LabyrinthStorm Burst has a 10% chance to create an additional Orbhelmet 100
Enchantment Storm Burst Additional Object Chance 275Eternal LabyrinthStorm Burst has a 15% chance to create an additional Orbhelmet 100
EnchantmentStormBurstAdditionalProjectile175Eternal LabyrinthStorm Burst has a 15% chance to create an additional Orbhelmet 0
EnchantmentStormBurstAvoidStunWhileCasting166Merciless Labyrinth30% chance to Ignore Stuns while Casting Storm Bursthelmet 0
EnchantmentStormBurstAvoidStunWhileCasting275Eternal Labyrinth45% chance to Ignore Stuns while Casting Storm Bursthelmet 0
Enchantment Storm Burst Damage 166Merciless Labyrinth25% increased Storm Burst Damagehelmet 100
Enchantment Storm Burst Damage 275Eternal Labyrinth40% increased Storm Burst Damagehelmet 100
Enchantment Storm Burst Area Of Effect 166Merciless Labyrinth16% increased Storm Burst Area of Effecthelmet 100
Enchantment Storm Burst Area Of Effect 275Eternal Labyrinth24% increased Storm Burst Area of Effecthelmet 100

Version history

Version Changes
3.23.0
  • Quality now provides +0.00-0.40 seconds to Base duration, instead of 0-10% increased Area of Effect.
3.17.0
  • Storm Burst now deals 6 to 8 Physical Damage at gem level 1 (unchanged), up to 168 to 252 at gem level 20 (previously 114 to 171).
  • Now has 35% Effectiveness of Added Damage at all gem levels (previously 25%).
3.15.0
  • Base radius now increases faster as the gem levels, up to +4 to Base Radius at gem level 20 (previously +2).
3.6.3d
  • Storm Burst's tooltip now displays the frequency at which Orbs jump and the duration of Orbs.
3.6.0
  • No longer fires projectiles.
  • Now creates orbs of energy while you channel that repeatedly jump towards the targeted location until their duration expires, dealing damage in small area after each jump. When you stop channelling, all remaining orbs explode, dealing higher damage in a larger area. This explosion deals more damage based on how much duration remains at the point you stop channelling.
  • Now has a cast time of 0.25 seconds (from 0.65).
  • Mana cost at gem level 1 is now 2 (was 4).
  • Mana cost at gem level 20 is now 5 (was 10).
  • Now deals Physical Damage, and converts 50% of Physical Damage to Lightning Damage.
  • Now requires level 12 (from level 28).
  • Now deals 6 to 8 Physical Damage at gem level 1, up to 114 to 174 Physical Damage at gem level 20.
  • Now has an added damage effectiveness of 25% (from 40%).
  • Now gains additional radius as the gem levels.
3.3.0
  • Now deals 31-47 lightning damage at gem level 1 (up from 9-13), up to 183-275 lightning damage at gem level 20 (up from 50-76).
  • Now deals 65% more area damage (down from 250% more), triggered when channelling ceases.
  • Now has an added damage effectiveness of 40% (up from 10%). Area of effect increased by 10%.
3.1.0
  • Now correctly modified by factors based on the state of the projectile (such as Powerful Precision`s "Projectiles have 100% increase Critical Strike Chance against Targets they Pierce").
3.0.0
  • Storm Burst has been added to the game.

References

ru:Грозовой взрыв